Stack Overflow
Stack Overflow

Questions tagged [logstash-grok]

Grok is an abstraction on top of regular expressions to allow easy parsing of unstructured text into structured and queryable form.

Parse arbitrary text and structure it.

Grok is a great way to parse unstructured log data into something structured and queryable.

This tool is perfect for syslog logs, apache and other webserver logs, mysql logs, and in general, any log format that is generally written for humans and not computer consumption.

Logstash ships with about 120 patterns by default. You can find them here: https://github.com/logstash-plugins/logstash-patterns-core/tree/master/patterns. You can add your own trivially. (See the patterns_dir setting)

If you need help building patterns to match your logs, you will find at:

1552 questions
0
votes
1 answer

Logstash, grok filter not working for fixed length fields

I am a newbie to logstash, I have an input file with fixed length fields and a config file for log stash configured with the regexp as shown below: Contents of my log stash configuration file first-pipeline.conf # The # character at the beginning of…
Priya Gachinamath
  • 115
  • 1
  • 12
0
votes
1 answer

grokparsefailure with multiple if [type] - logstash config

Ok - I've been racking my head over this config file for days with little success (I'm very new to logstash/ELK stack). The problem I'm having is when I place two logstash configs in the same directory I get a grok error on the second config. …
whistler585
  • 1
  • 1
0
votes
1 answer

Logstash not matching the pattern

I was learning logstash. Have a very simple config file.. input { file { path => "D:\b.log" start_position => beginning } } # The filter part of this file is commented out to indicate that it is # optional. filter { grok { …
Shabin Hashim
  • 677
  • 1
  • 10
  • 23
0
votes
1 answer

Logstash-ES Data Check

I am currently using logstash-jdbc-plugin to pull data from DB and put it to an index in ES. How to check if the entire data pulled from DB is getting inserted into Elastic Search index. The data that is pulled is in millions so can't keep checking…
sri
  • 331
  • 1
  • 4
  • 11
0
votes
1 answer

Logstash Filter to Extract URL from Text Field into a New Field Called URL

I'm inputting a field called text. this field may at times contain a URL.What I would like to do is extract the URL's from text, and put them in a new field called URL. I tried grok, but it seems like grok patterns need a specific log format in…
hello_its_me
  • 743
  • 2
  • 19
  • 52
0
votes
1 answer

How to add the file name when indexing in logstash conf

I have two files named access_log and http_access_2015-03-06_log and I want to set access and http_access_2015-03-06 parts of the file as the indices. I read some answers for similar questions but I couldn't get how I can filter the file path using…
Asma Zinneera Jabir
  • 801
  • 3
  • 13
  • 31
0
votes
1 answer

Multiline in Logstash with timestamp in each line

I have a multiline log written in a file as follows: INFO | jvm 1 | main | 2014/11/06 13:41:30.112 | ERROR [appHTTP50] [appEmployeeAuthenticationProvider] Can't login with username 'username' INFO | jvm 1 | main | 2014/11/06…
Mikhail Bibik
  • 1
  • 1
0
votes
1 answer

Elasticsearch geoip.location mapped to double and not geo_point

I am running Elasticsearch version 1.5.2. Logstash version 1.5.4. Most of the logstash settings are default: geoip { source => "ipaddress" } output { elasticsearch { host => "127.0.0.1" port => 9200 protocol => http …
Dhrumil
  • 117
  • 5
  • 13
0
votes
1 answer

How to match a pattern of "a=b c=d" with changing order in grok (logstash)?

I'm using Logstash to match Fortinet analyzer logs, and the problem is there are so many pattern without order of the fields. e.g. one type of message would be: service=DNS hostname="a.b.net" profile="Dns" action=blocked reqtype=direct url="/"…
eladelad
  • 99
  • 2
  • 10
0
votes
1 answer

Creating a new field using Logstash Filter

I have started writing my own Logstash-filter, based on the example filter provided on Github: https://github.com/logstash-plugins/logstash-filter-example My new filter reads from a jar file called Classficiation.jar. I would like to take the…
hello_its_me
  • 743
  • 2
  • 19
  • 52
0
votes
1 answer

Logstash records from a server being rejected by ElasticSearch due to malformed date

I am in the process of installing ELK including REDIS and have successfully got one server/process delivering its logs through to ElasticSearch(ES). Most happy with this. However, on updating an existing server/process to start using logstash I am…
Jerome Green
  • 43
  • 5
0
votes
1 answer

How to pull specific data out of a message in LogStash

I am trying to take log data from a custom application that has a well defined format. I am trying to pick out certain pieces of the data using the grok filter, but I am not having any luck. Here is a sample log: -…
hivie7510
  • 1,246
  • 10
  • 23
0
votes
1 answer

No data is being parsed + exception in elasticsearch logs

First of all excuse me if I sound a total newbie as I'm not the owner of this service (yet) We're using ELK (Elasticsearch (1.4.2)/Logstash/Kibana - We're using a single shard, so no replicas) to parse our logs and show charts based on some filters…
Meny Issakov
  • 1,400
  • 1
  • 14
  • 30
0
votes
1 answer

Grok pattern does not work for $ character

I use logstash to collect logs into elasticsearch. I'm creating grok filters for some logs by testing them on this link: http://grokconstructor.appspot.com/do/match#result I have a problem with $ character. The bad thing is you cannot know if there…
Orkun Bekar
  • 1,447
  • 1
  • 15
  • 36
0
votes
0 answers

how to write grok pattern upto particular word

I need help in writing grok pattern for upto particular string. I have below types log lines in same log file: line 1: 20151012 00:59:03 main ERROR java.lang.Class - Failed to retrieve the node - unable to resolve the path…
Amit Gawali
  • 270
  • 2
  • 4
  • 18
1 2 3
…
99 100